Control Techniques UD51 User Manual page 16

Figure 5-4 Marker Active Pulse Low - A and B crossed with A\ and B\
On the source encoder, A signal should be swapped with A\, and B signal
with B\ as shown above. This will not change the direction of the feedback but
will ensure correct synchronisation.
From the above the simulated marker output will only be correctly
NOTE
synchronised when the source encoders marker pulse is active low. Active
low being either as standard or by modifying the source encoder signal
connections as detailed above.
The simulated marker output pulse function does not operate with F and D
source encoders.
5.6.2 Drive software version V03.xx.07 onward, UD51 version 4 onward
(both present)
Synchronization of the Z marker-pulse output can be disabled by setting
Pr 16.12 Simulated-encoder output marker-pulse synchronization disable at
1.Synchronization is automatically disabled when Pr 16.07 Simulated-
encoder output scaling is set at either of the following:
• At a value that would cause the resolution of the encoder-simulation
outputs not to be an integral number of lines per revolution (LPR)
• At such a high value that the number of lines per revolution (LPR) of the
simulated-encoder outputs is less than 1
Pr 16.13 Simulated-encoder Z marker-pulse outputs synchronization inactive
indicator indicates the state of synchronization.
See the following logic table.
Set for integral number of LPR
Set for no integral number of LPR
Set for less than 1 LPR
16
A\
B\
Z
Pr 16.07
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Source Encoder
Pr 16.12 Synchronization
0
1
0
1
Pr 16.13
Enabled
Disabled
Disabled
Disabled
UD51 User Guide
Issue Number: 5
0
1
1
1